Metal-plate bending or forming machine.



No. 841,838. y PATENTED JAN. 2z, 1907.

J. R/WILLIAMS.- METAL PLATE BBNDING 0R`l PORMING MACHINE. APPLIOATION FILED OGTJO. 1906.

6 SHEETS-SEEE lA AMMTT -......NHUT a mi-- A4 PATLNTLD JAN. 22 1907.

No. 841,8sa.

J. R. WILLIAMS.' l METAL PLAT?I BBNDING 0R lPORMING MACHINE.

APPLICATION FIVLED OOTJO. 1906.

a 'SHEETS-SHEET 2.

PATENTED JAN, 22, 1907.

` J. R. WILLIAMS.

METAL PLATE BENDING OR FORMING MACHINE.

APPLIUATION FILED 001210, 1906.

e SHEETS-SHEET s.

PATBNT'BD JAN.=22,"1907.

i J. R. WILLIAMS. y METAL PLATE BENDING 0R PURMING MACHINE.

APPLICATION FILED 00T.10. 1906.

s SHBETSAHB'BT' 4 @vi/humaan PATBNTBD JAN. 22, 1907.

J. R. WILLIAMS., METAL PLATE BENDING 0R. FORMING MACHINE.

APPLIOATON FILED 00T.l0. 1906.

6 SHEETS-SHEET 5.

y I 'gllirucufozl L llurnlclj yNo 841,888. I PATENTEE IAN. 2z, 180:1.k I. E. WILLIAMS. METAL PLATE BENDING 0E EOEMING MACHINE.

APPLICATION FILED O0T.10. 1906.

'8 SHEETS-SHEET a.

' $0 fo fa 6MM/Eneco@ UNITED Arnivr oiririon.

. JOHN ii. WILLI/airs,I onEAsrioeANeEhvnw JERSEY To rif/Z7, when@ 717,551/ cm1/cern.

Be it known that I, JoiiN It. WiLLLiMs, a.

` citizen of the United States, and resident of East Orange, in the county ofEssex and i State of New Jersey, .have invented certain new gand useful Improvements 1n Metal- .Plate Bending or Forming Machines, of which the following is a specification.

,Tlieobifiet of the invention is to produce 'an apparatus or machine by means of which ,metal plates'iiiay have4 their edges coiled or fashioned into the necessary shapesfor the p rpsefor which the plates maybe intend-,

` I v'present my invention-herein as embodied 1n a machine for forming metalsheetpiling, the edge portions of'tliesectionsor units of Awhich are coiled or fashioned into loops,l the loop-y on one edge being of smaller diameter thanthe loop on theotli'er edge, so that in the assembling of the sections ofthe piling-as 'driven the smaller 'loops'of the respective sections may be inclosed within the larger. loops of the respective adjacent sections vand enter therewith.

The machine of'my invention` embodies' means by which the metal platef'fniay ber gripped and drawn or pulled through formf ing and finishing devices which during the travel of the plate `will coil or fashion the sired.

There are several nove] features aside from novel details embodied 1n the machine of my invention, and one 1s the provision of a prim ary bending'or forming die and a iinishing die or block separated by a S ace from thel primaryl die Vand through w ich dies the metal plate'is moved, tlie"`s`pace 'betweenthe dies permitting the metal afterdiaving been wholly or partly fashioned to spring into such shape as itsconstitution or tension may demand prior to passing through the' finishing die orfblo'ck, by which theplate is given its finished forni and all tendencyfto 'buckle Vor distort itself removed therefrom, l' f, f

Another -novel feature of my invention re# sides in the provisionof means within :the

primary forming orbending die for facilitat- Speocation of Letters Patent. Apnlicnfimi filed October l0! 1906i vSerial No. 338.213.

'ing the passage yof the metal the into locking engagement portions ofsame intothe lshapes de, f

' top vview of the primary bending or forming METAL-PLATE BENDING 0R FQiMINGfMACHINE,

Patented Jan. 22, 1907,

through, so that the metal plate may not iin duly bind within orwear against the walls of said die and be .drawn ormoved through the same with the minimum power.

A further novel feature of my invention resides in the construction of the grip device and bending or forming die by which a plate* of metal of full width throughout may be gripped by said device and pulled through said die and against the ta ering or converging walls of same in lieu o' at first providing the plate 'with a tapered or .tang-advancing@ end port-ion to be primarily projected freely' through the forming-die for the purpose of being erggaged by the grip device, `said end representing wastey metal and a loss, since 1t must thereafter befrenioved from'thepl'ate. f f, Inaccordance with my invention I provide `a= grip device which may be .moved tlirou li the bending or forming die to take hold of t e memlplitt at a point beyond the entrance to' the Sm@ and then draw or puii the nier-f through ,said ,die1 tlii'isnnaking it possib e to handle a plate of full widthilnoughout, and I also provide means for filling the. vspace in said ,die through which the grip passes, so .that the metal platewlien pulled through the die and having its edge portions fashioned f may not buckle into said space.

`The inventionfwill be fully understood from `the detailed4 descri tion hereinafter presented, reference being ad to the accom-v panying drawings, yni whichff- Figure l is,;i..,top viejw, partly broken'away, .I w-

ofk a machine constructed in arrordancc with andembodyinginy invention. 'Fig2 is a side'elevation of same.` Fig'. l is an enlarged the arrow 4. of Fig. of the @dit tion of the rooA ral. transverse fseetio'n of saine on'tlie dottedi Y line66oi Fig. 3. Fig. isalikesection of saine on the "dottedline 7 Zeflligi;

Fig. 9 is a like section ofj'stuiieon the line 919'` 105y of Fig. 3. Fig.r 10 isan enlarged detached to i view artl "in section of thelower'seei, .i u

tion oftheprimary bendiigo" forming die or tool. Fig. -11 is a detach'eriview,)partly in section, of the innerface of tlieupper sectionof the primary lenlkiiigoiI forming die or tool. Fig.' 12v is a detached top view of the finishing block or die. Fig. 13 a view of the exit end of same. Fig. 14 is a detached top view of the grip' and means for filling the' space within the primary bending die or tool through which the gri travels. Fig. 15 is a side elevation, partly roken away, of same, a plate of metal in section being represented as held by said grip. Fig. 16 is a top edgey fastened the primary bending orforming die or tooly 21 and which at its front or receiving end is formed With a4 longitudinal recess to receive the metal plate to yibe treated andwhose side walls 22, Fig. 1,'consti tute guides for the plate. 'lhe floor 23 of the said-recess is in line with the lower edge of the entranceopening 24, Fig. 4', t said die21. livery end of the table.20 .is also' formed vwith a longitudinal-recess defined by 'the walls -25 ,v

Width of the metal plate* aft-er being `fa'shffioned into the required form...

The front or receiving endof the'tableiQ. is provided with. a longitudinal'groorve'26'to1 receive the grip device and lits. coperating devices are moved to pull the metalp through the die. 21, said Hexibleconneetion'.

being secured at its inner end to theA grip del -ice and at its `outer end engagedI by a sprocket-wheel 29, secured uponl a shaft S30,

operable by means of a belt-Wheel'31, driv- J ing-shaft 32, worm 33, and pinionvvheelly? the latter being secured upon the outerend. of said shaft 30. l The gearing justjjdescribedr' for impartingipower to the `sliaft'f() 4is'of usual construction', except that in t'hefpresent" instance the shaft 32 is extended to. the front'.

or receiving end of the-machine-foripurposes presently tofbe described. Therotation of the sprocketwheel 29 in anuoutwardly direc tion, or toward the left'looking at Fig. 1, causes. the chainv 28 to-,draw the gripldevice and the plate engaged Aby the sameV through' the dies.

At the right-hand or receivingr end of the machine, referring'toFigsl and 2, I provide Iat opposite sides ofthe grbove 26 in the bedplate upper `Vand lower feed-rollers35 36,.se cured up0nshafts`3738, respectively, the

lower one of- Whicli is dr-iven fromv the main.

' shaft 32 through thezworm 39 thereon and pinion\ vheel4(), secured upon the end of said shaft 38. The shaft 38 transmitsits Fig. 17 is a '.shapin lfthe same, said pfdevicesandthei v,loop "matel the outline shown in Fig.- 13. The

841,838 e v y Vmotion, throughfl the gearwheel 41, lsecured upon one end thereof,^to the upper shaft 37 throughfth'e gear-Wheel .42, securedthereon.

` or bending die 21.A The function performed by the rollers 35 36 is that of gripping the `platesfedupon the floor 23 and coperating with 'the grip device Operated b the chain 28 in moving said plates into an through the forming-.die-21, the action of said rollers 35 36 being that of pushing the plates into and through the die 21, While the grip device operates topull said plates `throughl said die.

It is not necessary at all ftlmes to employ both the rollers 35 36 and-the grip device, since-on many occasions the gripdevice will be fou-ndto be entirely adecliate for drawing l I the platgs' through the ma ine.

The v`fnhding 'or forming die 21 comprises la bottomiilatef, Figs. 4 to 110,*inclu'sive, and' 'a top plate44, Fig'. 3 and Figs. 6to 9, inclu- .-sive,gandwFi'gs-`11, which: plates match eeach i iotheii-,te :form the die .21,l through which the Fig. .1, and of a width correspbnding to-the';

metalplatelshownlin Fig. 17) is drawn for .flat an' ',havi''. parallelside edgesand enter- .ing thedielat: t eentrancej2r4, Fig. 4, thereto and ,-leaving'the'fsame 4through the exit 45,

features, and the rear or delivery end of thel .A

The andtop plates 43 44 of the die ,21' areyrecessed-r longitudinally to lform a groeve L46\fvorgthe grip 'and its-parts, said A.46'lilngin-line With'thegrooves 26 27 a lnthetableferbed20; f5. l The interior bendinglor matrix portions of the lower andv up er plates .4 3 '44 are adapted in:v the present i lustration to transform` a .-plainllatplate-47, Figf 17, into the piling-` section48,-Fi .518, ,on the passage of said platefthrought eldie.21, the edge portions of saidplate beinggradually coiledto form the ocking members 49' 5 0 of approxip tel initially being f IOO plate eaves the die 21 with a locking member 50.' of exactly;v the final diameter desired,

Whereas the locking member 49' is preferably subjected afterthe plate'- leaves theA die 21 to furtherfreduction in diameter, so that it may form a closed tube, as shown in Fig. 18, by

means of a' finishinggdie 67 hereinafter de` scribed.4 .'The members 49 50 preferably bothproject lfrom the .same 'side of the plate,

and .the member 49 isless in diameter than the member 50, so that in driving the-'sections 48 the member 49 of one section may be" top plates '43 '44,- respectively, ,are formed asl to their interior in the manner' illustrated more particularly in Figs. 6 to 11, inclusive. 1go

Mmes

rlhe bottom plate 43 at one'side ol the groove 46 has a plain flat surface 5l, at the outer or left-hand edge of which is wall 52, which extends on an inwardly-inclineclline toward the exit.. end of the die. The upper plate 44 olthedieis formed with ajtlat surface I53, Fig', vl l, corresponding with the flat surface 51 oi the bottom plate 43, and the said surl'aces 5l 53 match eachother and lorm parallel "walls between `which those portions `ofthe plate 47 intended to remainjllat will y pass.

The surface 51 in the lbottom plat-1.43, is 1n the forni of a recess orlongltudlnal sgi-covo, and the portion 53 oll the top pl ate/44 r sets within said groove, as shown'ln Figs.

8, and` 9. At the outer portion'of the part ot' the top plate 44 the metal is grooved out, is denoted atj54, this groove starting from the entrance end of the die and inclining inwardlyhand being undercut inwardly, as deL noted by the d tted lines, 55, 11, said groove 54 extenin'gfaround the'edge of the portion 53 to produce al gradually-enlarging' cylindrical outline, as denoted by the suc-g cessive illustrations in Figs. 6, 7, S, 9, and. Fig. 5. vThe lroove'54 at its outer side or entrance edge is inclined inwardly correspondingly withfthe walljl of; the bottom plate 43,' and said groove by its gradnelly-increasing depth asitfapproaehes the exitend of the die',

groove 54 of the top plate 44, and as said plate47lgradually advances through t-liedie its said edge portionis compelled toiiollow the .groove 5l4and `finally take a cyhndricaltorm aroufnd tneni'andrel created bythe increasing' depth ol'lsaid groove. l therefore during the progressil ot the metal plate along the 1n wardlydnchned wall 5.2 of the bottoni plate 43 and intvaldlyiiiclined groove 54.()1 the top plate 44operate upon tlnrleft-hand edre portion of the metal plate 47 to coil said 4portion upwardly and -inwardly to create the lockingr neinlber 49.,

The bottom plate 43 at its right-hand side looking at Fig. lOis formed with a shaping'- surface 56, which is broad and substantially flat at the entrance-end. of the d ie, and thence takes the form of"a"eompoundeurve and inclines imvardly at one edge toward the exit end of. the die, a ,groove 57 being. formed along the outer edge or said shaping member 56 and which groove gradually increases iny deptli,as denoted by the dotted 47 through the die. l Vplate 47 through the die itsright-hand edge vexity oli4 the nieinber 56 compelling vthe Fig. *10 and as shown b y full lines. in the su'- illustrations 'presented in Figs.'A 6 to Q," inclusive. The forni oi the up per surface ol" the shapingrnenihor 56 is also clearly illustrated in Figs. 6 to 9, inclusive. 'fl`hat,p9r V vtion of the top plate 44 which matches the.

shaping-nieinber 5610i the bottom plate 43 is numbered 5t), Figs 1l, and presents a curved surl'ace conforming with the upper surface of said 1n .\rnlnn56, shown ilnrigs. 6 to 9, inelusive, :therebeing asT-ace left between the parts .5 for the passage of the inetal plate `l)urinfr` the travel oi' the meets the iawardlyfinclined wall ot the groove Admvnwardly into said groove, the' inclination ol" said wall and the gradually-inereasing depth. of said groove and'- the increasing conrightehalul portion of the plate ,47to become' curled into the lock-ingmember 50y In ulling or pushing the metal plate 47 'throutlnlfi the diethere would ordinarily be consich'rable friction generated between lthe haif.l `metal and the convergingl and curved walls of the die, and considerable power would have to be exerted to pull or push 'theplate ,tlirouglnthe die but in accordance Witlra part oi my invention I obviate' such friction and the expenditure of excessive power in elleeting the travely of theplate lthrough the die bnproviding within the die and along the .outer edges ot the inetalfforniing grooves at ,Se .57- of the bottoni plate 48 and isjdeilected""" each side thereof a series of grooved wheels roo 60, the surfaces `of which constitute portions of the surfacesot said grooves, as'shown'in Figs. 6 to il l, inclusive, and coliform to the outline ir. cross-section thereof, and whichv wheels bv en ravin@ `the outer edge ortions4 1 .l D h s.

ofthe-ni @l plate 47 en its passage through the :dioi'aeilitates such passage, relieving. friction and enabling the moyernent of the plate with the niiniinum amount of power. .The

wh eels 60 vary in thickness and in the shapel 1 io of their annular groovesin accordance with their location` and the character of the Inetalforming grooves at the points at which. they are situated, and, as may be observed in Figs,v

l()v and il he outer walls of the grooves'54. iig' 57 are cut away slightly adiacent to the`r said wheels, as at 61, so that the outer por-'Y "tions 'of the metal plate may exert their greatest strain while being shaped against the periphcries ot said wheels, The wheels- 60' are secured upon vertical "shafts 62, which extend upwardly through vthedie 2l and attheir lower ends carry pinion-wheels 63, Fig: 1, engaged by wormwheels 64 on a central longitudinal shaft 6 5, i2 5 which by a train ot' gear-wheels (i6-is connected with the. main driving-shaft 32 and` 'receives motion thineifroin.- 'lhe shaft 65, worms 64, pmwn-wlreels 63, and shafts 62 lines vin l impart rotary motionto the wheels 60', which 1,30

, bending or forming tool, because I also. em-

` The die 67 is composed of matched lower and upper plates 68 l69 and is securedupon the within. the said space, but entirely loses suchtheir edge portions into the desired outlines.

l ,die 67.

rotate in a direction toward each other and carry their lperipheral surfaces against and in the direction of the line of travel of theplatcs to 'be treated, thereby aiding in the movement of said plates,'as well as in conforming It is not necessary that in every'instance the wheels 60 should be driven by power, since the pressure of the yedge portions of the traveling metal plate against them will effect their rotation; but when power is applied to the wheels 6() said Wheels will perform their maximum duty in obviating friction and aiding in the movement of the plate through the die. .I

Idesignate the die 21 as .the primary"7 ploy a finishing die tor block .67, throughj whlch the metal plate 47 is pulled and which is shown more clearly in, Figs. 1, 2, 12, and 13.

bed .20 at a vsuitable distance in advance of the primary die 21, so that an open space may be left between said dies, withinWhich spacethe metal plate issuing from the die 21 may, under such tension as it may'possess,` s ring from the shape'impart'edto it by the r ie 21. The matrix por tionof the finishingdie 67 constitutes a continuation ofthe `ma` trix portion of. the die 21,*and the two dies are separated by the space 70 infli'eunf'being formed in one continuous` body,.so 4that the metal plate may, if it should'be so disposed, distort itself within the space 70 prior tolbef ing subjected tothe action of the die 67, this feature of the construction being desirable in the formation of the special piling-section illustrated in Fig. 18, in theformation. of which the members 49 50ers of different configurations and on. -different curvatures andy exert different resistances while.` passing.- through the dies at their opposite. edge` 'portions. I find that the lockmg memberl 5,0. of` the piling-section 48 leaves therdie 21 in sub#k stantially the finished condition shown in Fig. 18 and with .little or no tendency I to spring outwardly or open or distort ,itself within the space 70 between the dies, while at the same time the locking member 49 does 'show a tendency to spring or open utwardly tendency after ithas been permitted to thus spring outwardly or distort itself'within the' open space 7 O and is then moved through the I preferably provide rods or mandrels 71 72, bridging the space 70 between the dies 21 67, upon which the curled members 49 50 of 'the metal plate travel from the die 2l to the die 67, these rods 71 72 being screwed into the end ol' the die 21, as shown in Fig'.` 3, with in the outline of the curved fmlning-grooves in the die 21, as denoted in Fig, f. so that as the metal platel issues'from the die 21` its edge described. g The matrix portion ofthe die67, located at 9o the-right of theI roove 73, lookin at Fig. 13, i

fclosejthe coil'- for the loc formations may naturally pass upon the said rods 71 72 and be guided thereby into the 67. rI'he rod 71 preferably continuesen tirely through the matrix portion of-V vthe 67, as denoted by dotted lines in Figs.' 1an 12, and the rod 72 may extend- 'through lsaid i' die 67, although it is not necessary that should do so, because the larger locking mem ber.50 vis not reduced inrdiameter on'its pas sage through the die 67, but remainsf thk same diameter it possessed upon 'issuing from the die 21. The lockingmember 49 is,j l,1 nwf ever, more closely coiled during-its passa' en through the die 67, and hence it isde'sifrabjei;A that thered 71 extend through said"die`,"so 89 that it may constitute a mandrel' around which the Walls of xsalici, member 4911185r lje-. forced-by the conve ging walls of the y'matr/ille of said die 67. I i

the die 21, so as lto y ermif, Of'rthepropey movement of the grip. evices presently to bg Y corresponds wit that portion o the exit 45I of thedie 21 located at the right of the pas' sage 46 Mtlirnigii 'said die"21 looking at Fig. 5,

the groove'54jof the-diegQl being, vin effect, 953i continued througlr-thel die/67 nd'within saidy ,lf die pres'entir'ig` ',straightj4 parallel. "surfaces i That ortionofthe matrix of. the die 67' the left yof the passage "loolgin'g `at liigsiand '1,35is 'of substantiallyfeene shape, with straight wall 74 at its'outer' side,l as indicated,

by dotted lines in Fig. 12,'arid fo'rw.ardly-co'nlf.fuvv i A i verging walls 75"at its 'other Sides. :The

mandrel 71 isparallcl with thetstraight Wall 74,and said wall assures theformation ofa' 'x65 straight edge atthe'side of-the 'piling, While.

the converging walls l75v opate tot. further i gmemberiflt aoundfthefmandrel 71, so that,when't-lieY metal 'plate-'leaves the die e7 "thtleldhg:

16, said member forming a l-substantially.y closed tube. i The die or finishing-block 67 thus receives the metal plate from the die 21 and its main, duty iste preserve the formation of the lockl' 3 ing member 50 as created bythe die 21`- and j close the docking member 49 to its finished t condition 'and also to'deprive said member s of the tendency to distort itself it possessed immediately on leaving the die 21 In. the formation of the metal plate'in-tdthe 1pilir'igsection said section ,yis*approximate y ished in the die 21 and is f eompleted,espe-v cially as tothe locking member 49 in the die 67, said member 49 beingreduced in diaree-- ter and closed on its passage through the die 1 67. The form and diameter of thelocking member 49 as it leaves the! die 21 is clearlyf' represented by the form of the exit-opening iig', member 49 may be of the formv shoWnilnFig."

,40 Wardly'," andV thereuponv 'the' plate] 47 to/.bev treated vis fed upon and tofthe grip and said` 'l at the left-hand portion of Fig. 5,L and the I form of the locking vineinloer '-19 as it leaves,

j the die `-67y is represented by the left-hand i portion of the exit-opening represented 1n l 'i The :grip devices are shown incre. clearly in v 1,14, andand comprise abaseineni-- `berf to pass below tlieLinetal-plate 47 to he @treated and an upper4 member 77, which :bifureated at lits regar portion and has pivot-` allysecured between its arins `some eccentric dogs 78 to" engage 'the'up 'er surface of the plate .'47 and compel it to olloiv the grip devicejas thelatt'er yis; engagedj in pulling the isof .the lrne1nber'77 'isfhinged a har'79,v which saine; Between the outer biturcated arms corresponds with',th e general outlines of the tail,portion' of the lower member 76 and is adapted to lieupon thelrnetalfplate 4'7. At .the forward end ofthe gri isprovided a ver ltical bolt 80jto receive th end of the ehain `281,; connected with the sprocket-wheel 29.

The vgrip shown, with; its" tail portion and hinged bar/79 .in crosssection,corresponds fotithne ofthe groove .46,extend1ng wit the fthe. die 21', and groove 73,-' extending groove's anjd also in vthe present instance, to

- engagethe'.fulllength olithe platef4`7 to be pulled through the inaphine Thegrip and its parts are adapted to travel in the grooves 26127 ofthe bed-plate at opposite ends'oi the machine.; l" In the operation'of the vmachine the chain '28 is loosened from the sprocketlwheel 29 and the grip and its parts arepushed'through the lies 67 21 vand into and along the groove' 26 'l at vthe ,receiving end ofthe machineluntil the hinged `bar v79* has passe-d sufficiently' beyond the .shaft I bar '79 turned downwardly upon the saine,

feature ofgreat plateat its advancing end may hexof'full as shovvnin Fig. 15. The chain 2S is` there-l upon restored to the sprocket-wheel 29, andl power is applied through the belt-wheel 31 to `the shaft 32 and mechanism connected with said shaft, with the resultthat the sprocket- -wheel 29 will act through the chain 28 to' pull' kthe Vgrip and the plate 47 "intoengagement* with the feed-rollers 35 36,' and thence into. and throuvh the dies 21 67 The feed-rollers 3 5 36 facilitate the movement ot the .plate through the dies, and 'the grooved wheels or rollers coperate -in shaping the plate and moving vthe saine through the sdies;v rllheplate 47 is fashioned byy thedi'es 21,67 during its travel through the sa'me in ,the manner Y hereinhetore explained in detail. The grip and its partslinay hepushed entirely throng 1 the die .21 to enga e the plate 47, and this is a enefit; since thereby 'the width in lieu'otbeing cut intojalong and ta'-4 437 to, permit it` to Vbe turnedulL witlin the .same

pering outline and pushed through )the die or dies to the grip. The grip and its coacting vparte ll'zthev groove 16 in the die 21 and groove 73 inthe .die 67 during the iashioning ,of the plate 47 insaid dies, and this is of great advantage,-sinoe otherwise said plate, due to theedge pressure on the saine would likelyv vbuckle up within said grooves.

f l li ave illustrated my invention as `embodied in a machine forfproducing trie special sheetpiiing sections shown, but do not confine the; saine to the production ofv metal sheet-piling or do .l lirnit tie e invention in every instance l to the employment, of the die 67, but ininstan'ces in 'Wiiichfthe outline of the piling-secltienis such that the nietalplate exerts unequal resi-stances during its passage through the die 21 and is likely to distort itself after leaving said die I irecommend the employ? ment of tile die 67 and its'separation by an open space from the die 21, so that the ad vancing end of the metal plate may spring from the intended shape much as niay be' t before it is subjected to thesettingand'iinrlering Xaction of the die 67.

tween-tre dies67 21 is described as open lie-- The space because -it'perinits the metal plate tov distrt itself at eaidspace, the metal being there re lievedfroni the restraint of the close matrix forming-Surfaces of tiled-ie 21; hutit is tobe understood that the saine space would exist if the dies 67 21 Wer'ein one continuous body with thespace formed at the proper placeW- nietal plate. f

to secure by Letterslatent, is--'v chine, a die thtough which the plate is' to be -to grant said relief to 'the What I claim as my invention, an'd vdesire lIO 1. In a metal-plate bending or forming rua-` paseedior shaping the same, yand a grip devicefor engaging the upper andlower sur- -lacefs of said plate at the entranee'end of said o die and pulling` the plate .through said die, said die having a longitudinal groove extendvingabove,and-below the' passage through it for tizfeplate. through which the y grip may travel @Albritantially set forth. v

- A2. lii'aiiuetalfplate bending or forlning inav chine, die through whicl'x the plate 'is to be paf-sed vfor.x-liaping the same, and a grip .`de.vv

vice if() fengagiing the plate and pullingit througn'said die, said die having a groove 'f througlifit vthrough which the grip inay be combined with means for keeping moved y. said groove illed during the'travel of the plate so that the latter may not crowd tlierevice for engaging the plate and pulling it through said die, said diehaving a groove through it through which the grip may be moved, 'and said grip device b eing adapted to engage the full length of tre plate and keep said groove filled during the travel of the plate; substaiitiallyi as set forth.

4. In a metal-plate bending o r forming machine, a die through which the plate is to be passed for shaping the sanfe, and a grip device for engaging the plate and puhing 1t through said die, 4said die having a groove through it through which the grip may be moved, and said grip comprising a lower member having an extended tail portion, an upper member' having means for engaging the plate, and a hin ed member over said tail portion; substantially as set fort-h.

' 5. In a metal-plate bending or forming n: achine, a die ti'frough'wlich an initially flat metal plate is to be passed for shaping tige same and which die has a nratrix adapted to coil the opposite edges el said plate and preserve that portion of same between tile coiled edges iat,.mea'ns for moving tie plate through Asaid die,` and a finishing-block through wi. ich the plate is passed after leaving said die; a free space being left between said die'and vblock for said ceilededges of tiie plate to spring from the sli ape intended for t-hem`i` tney should be so inciined substantially as set fort-ii.

6. In a metal-plate bending or forming ma chine, av die through which the plate isY to be passed/,for `shaping tite saine, means lor pulling the plate through said die, and a ii'ishing-block through which the plate is pulled after leaving said die, said block being separated bya space from said die, and said die and block having a groove throurh them through which the means for pul ing the plate may pass; substantially as set forth.

7,. ln a niet al-plate bending or forming ma` chine, a die through which the plate is to be passed lor shaping the saine, means for pulling the plate through said die, and a finis`h ing-block through winch the plate is pulled after leaving said die, said block being separated by a .space from said die, and said die and block having a `groove through them through which the means for pulling the plate ina);Y be passed for engaging the plate at the entrance end ol said die, combined with means for keeping .said groove filled during the vtravel of the plat-e so that the latter may not crowd therein substantially as set forth. 8. Ina metal-plate bending or forming' machine, a bed, a die mounted thereon through which the plate is'to pass for becom ing shaped, and a grip device for engaging the plateand pulling it through said die, said i grip may be moved for engagingv 9. In a'metal-plate'bendingor forming machine, adie through/which an initially flat f metal plate is to. bepassed for 'shaping the same and which die has a matrix adapted to coil the opposite edges of said plate and preserve-that portion of same between the coiled edges flat, and a'grip'device for engaging the upper and lower surfaces of said -p ate at the entrance end of said die and pulling the'plate through said die, said die having a longitudinal groove extending above and below tlre passage through it for the plate through which the grip device may travel; substantiallyas set forth. .4

y 10. 'In a metal-plate bending or forming machine, a die through which an initiallyiiat metal plate is to be passed for shaping the same and which die has a matrix adapted to turn. the o direction 'rom the face of the plate and coil said edges into tubular form, while preserving that portion ofthe plate between the coiled edges flat, anda'grip device for en aging the upper and low'er surfaces of said p ate at the entrance en d .of said die and pulling the plate through said die, said die havin a longitudinal groove extending above and elow the passage through it for .the plate vthrough which the grip device may travel; substantially as set forth. y

. 11. In' a`metalplate bending or forming macliine,a 'die through whichV an initially flat metal plate is to be passed for shaping the same and which/die has a matrix adapted to gradually turn the opposite edges of the plate in a direction from the face of the plate and coil the sameinto tubular form, while preservin f that portion of the plate between the coile edges fiat, one of said coils being turned inwardly over upon the surface of the plate, whilethe other ro'ects outwardly beyond the edge of the hotly portion of same, combined with a grip device for engaging the up )er and lower surface of said plate and pu ling the same through the die; substantially as setfortli.v fi@ metal plate is to be `passed` for shaping the posite side edges of the plate in a 'le preserving that portion of the IOO IIO

IIS

In a I netal-plate bending ,or forming 4machine, a die through' which., an initially flat 'cave forining-surfaces to act upon said plate,

senese platev between the coiled edges hat, coinbined with Wheels inounted Within said die With their peripheral edges in line with and constituting portions of, the said 1lorniingsurfaces, and a grip device 'for engaging the nietal plate et the ei'itrance end ofrsaid die fand pulling the plate 'tlirougli said die, said die having a. yloi'igitudinal groove extending above and below th passage throughit -for the plate. through Wh' .h the grip may travel 1;. substantially as set iorth.

13'. In a metal-plate bending or 'forming` machine, a die through. which the plate is to be passed for shaping the saine, the matrix portion of said die having converging forniing-sui'faces to act upon said plate, coinbined with Wheels mounted Within said die with their peripheral edges consiitutingv a portion :of the dieer'orining surfaces, nieans for rotating said \vheels, and ineans ior inov ing the plate through the die; substantially as set forth.

14.` In a metal-plate bending` or toriiiing inachine, a die through which an initially flat metal plate is to be passed for shaping thesaine and which `die has a iiiatrix possessing converging concave forming-surfaces at its sides to gradually coil the opposite edges oi Asaid plate, Wliilepreserving that portion of the' plate between the coiled edges ilatI coinbined with wheels having concave peripheries mounted iv'thinsaid die with their pe l ripheral edges in line with and constituting portions of the said i'oii'iung-surfaces, and a grip device for engaging the iiietal )lato at the entrance end oi said die and pu ling the plate through said die, said die having va longitudinal groove extending above and below the passage through it tor theplate through which the` grip may travel; substantially as set forth.

15. In a iiietal-plate bending or lorining machine, a die tlirough which the plate is to be passed for shaping the saine, the instr/ix portion of said die having converging con combined with wheels having concave poripheries inounted within said die to forni parts of d l"oriiiiiig-surfaces7 ineans for rotating said wheels, and n'ieans for iiioving the plate through the die; substantially as set forth.

16. In a inetal-plate bending or forming machine, a die through which an initialliY flat metal plate is to be passed for shaping the saine and which die has a iiiaizrix possessing forming-surfaces at its sides to act upon the o 'iposite edges of said plaie, while preserving t iat portionof the plate between the edges flat, combined with wheels,mounted Within `sii/id die with their peripheral edges eoiistitilting portions Aol" said forniing-surfaces, and a grip d evice'tor Yeiigaging -the nietal plate at the entrance end of said dii` and pulling the plate through said die, said liieliaving a' loiii gitudinal groove extending above ai'idbeloiv die passage through it for the plate through which the grip may travel; substantiallyY as set forth. Y

1T.. In a metal-plate bending or forming machine, a die through which the plate is to he passed for shaping the saine, the iiiatrix por-ion of said die having forming-surfaces to ecuupon said plate' in shaping the saine, combined with Wheels mounted Within said die Wir-'liI their peripheries constituting a portion ot said'surfaces, means fory rotating said wheels, and nieans for moving "the .plate through the die; substantially as ser; forth.

' 18. In a metal-plate bending or"forining machine, a die through which an initially iiat metal plaie is to be passed forshapingthe saine 'and which die has `a inairixpossessing at its opposiesides converging .feriniii u grooves Whose surfaces engage and shape ,the edge porLions ot 1he plate and which grooves gradually increase in depihitouard theiexit l end of the die, and said die heilig adapted io preserve that portion of the plate ybetween the coiled edges lla, combined with agrip device for engaging the upper and lower surlaces of said plate at n die land pulling,l the plate through said die;

'subsianlially'as set fortlil h ]9.In a inetal-plate bending or forming machine, a die through which an initiallyliat nier-al plaie is to be passed forsheping the l saine and which die has matrix possessing its opposite sides converging 'rininggrooves whose surfaces .engage andshape the edge portions of the plate and which grooves gradually'increase in depth toward the exit end oic the *die7 and said die beingvudapted to preserve that portion of the plete between the coiled edgesflat, combined with a second die set in advance of said first-mentioned die the entrance end of said ioo and having matrix forming-surfaces to further act upon en edge portion of the plate, and a gri-p device` adapt-ed to engage the upper and lower surfaces of the plate at the4 entrance end to the iirst-iiientioned die and pull the plaie through both of said dies, said dies having a longitudinal groove extei'idiii;r above and below the piissage through tlicin for the plate through which 'the grip iiiay travel ,1. substantially as set forth.

2U. In a metal-plate bending or forming machine, a die through Whit-li the plato is Lo be passed tor shaping the saine, the matrix portion of said die having converging forining-grooves u'lu'ise surfaces engage i nd shape the edge portions ol the plate and Which grooves graduali)r increase in depth toward TIO 'the exit end of the die, combined with a secfaces io luriher uct upon the edge portic'ins of p ilie pluie, rods bridging the space between said dies within the outline of the curved poriioii oll the iiiaii'iees ol saine so as to receive hand guide the coiled edge portions of the [plate duringthe travel of the latter, and .inieans for moving the plate through said' dies; substantially1 as .set forth.

21," In a metalrpla'e bending forming machine, a die through which an initiallyiiat metalA platel is to-be passed for shaping the Vsame'and the matrix portion of which die has at its opppsite sides converging formingio grooves w eh gradually increase in depth 'to shape the edge portions of the plate, while preserving that ortion of the plate between vthe coiled edges at, one of said grooves being .extended outwardly and thence laterally inwardly on a curved line to coil one edge of heplate o ver upon the body of same, and heotlier groove 'being extended outwardly v,and .thence laterally beyond lthe body of the ,plate vandthence inwardly on a curved line to 'coil the other edge vof the plate and carry the j-o'uter portion of the coil beyond the edge ol' the flat portion of the plate, combined wi th lmeans for moving the plate through said y die; substantially as setforth.

.f 22. In a metaLplate bending or forming zinachine, a die through which the plate is to I- 'be passed and Whose matrix portion at its l i i l l I in advance of said first die and having at the opposite edges of its matrix curved surfaces to receive the edge portions of the plate, the surfaces at one vedge of said matrix being on converging lines to further coil the edge of.

theplate', and means for moving the plate through said dies; substantially as set forth.

23. In a metalplate bending or forming machine, a die through which the plate is to be passed and whose matrix portion at its opposite edges, has converging forminggrooves to shape the edge portions of the plate, said grooves gradually increasing in depth and one of said grooves being extended upwardly and inwardly on a curved line and the other downwardly and inwardly on a curved line, combined with a second die set in advance of said iirst die and having at the opposite edges of its matrix curved surfaces -to receive the edge portions of the plate, tlie surfaces at one edge of said matrix being onA converging lines and encompassing a core to further coil the edge of the plate, and the surfaces at the other edge of said matrix being substantially straight and extending' around a core, and means for moving the plate through said dies 5 Signed at New York city, in the county of New York and State of New York, this 8th day of October, A. D, 1906. 4

JOHN R. WILLIAMS. Vitnesses:

CiiAs. C. G itL, ARTHUR MARION.

substantially as set forth. 

